JP3068759B2 - 無線周波数スペクトルを用いた通信システム - Google Patents
無線周波数スペクトルを用いた通信システムInfo
- Publication number
- JP3068759B2 JP3068759B2 JP6292026A JP29202694A JP3068759B2 JP 3068759 B2 JP3068759 B2 JP 3068759B2 JP 6292026 A JP6292026 A JP 6292026A JP 29202694 A JP29202694 A JP 29202694A JP 3068759 B2 JP3068759 B2 JP 3068759B2
- Authority
- JP
- Japan
- Prior art keywords
- radio frequency
- downstream
- upstream
- frequency signal
- surface acoustic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001228 spectrum Methods 0.000 title claims description 41
- 238000004891 communication Methods 0.000 title claims description 21
- 238000010897 surface acoustic wave method Methods 0.000 claims description 49
- 238000011144 upstream manufacturing Methods 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 24
- 239000013078 crystal Substances 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 14
- 239000013307 optical fiber Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 230000010363 phase shift Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims 5
- 238000010168 coupling process Methods 0.000 claims 5
- 238000005859 coupling reaction Methods 0.000 claims 5
- 230000005611 electricity Effects 0.000 claims 1
- 230000002457 bidirectional effect Effects 0.000 description 15
- 239000000835 fiber Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 239000004020 conductor Substances 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 101150097577 OPR1 gene Proteins 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000787 Gum metal Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 235000008409 marco Nutrition 0.000 description 1
- 244000078446 marco Species 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12019—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
- H04J2203/0057—Operations, administration and maintenance [OAM]
- H04J2203/006—Fault tolerance and recovery
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Optical Communication System (AREA)
- Optical Integrated Circuits (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/147,652 US5483369A (en) | 1993-11-03 | 1993-11-03 | Communication systems using passive RF routing |
US147652 | 1993-11-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07240730A JPH07240730A (ja) | 1995-09-12 |
JP3068759B2 true JP3068759B2 (ja) | 2000-07-24 |
Family
ID=22522369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6292026A Expired - Lifetime JP3068759B2 (ja) | 1993-11-03 | 1994-11-02 | 無線周波数スペクトルを用いた通信システム |
Country Status (4)
Country | Link |
---|---|
US (1) | US5483369A (fr) |
EP (1) | EP0651530A3 (fr) |
JP (1) | JP3068759B2 (fr) |
CA (1) | CA2129603C (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU6386896A (en) * | 1995-06-22 | 1997-01-22 | Scientific-Atlanta, Inc. | Hybrid fiber coax communications system |
US5872815A (en) * | 1996-02-16 | 1999-02-16 | Sarnoff Corporation | Apparatus for generating timing signals for a digital television signal receiver |
US5943150A (en) * | 1996-09-30 | 1999-08-24 | Regents Of The University Of California | Massively parallel processor networks with optical express channels |
WO1998019409A2 (fr) | 1996-10-15 | 1998-05-07 | The Regents Of The University Of California | Processeurs rapides fonctionnant en simultaneite sur la base d'interconnexions optiques a multiplexage par repartition en longueur d'onde et a couplage en etoile |
US6094285A (en) * | 1996-12-04 | 2000-07-25 | Trw Inc. | All optical RF signal channelizer |
US5963561A (en) * | 1996-12-05 | 1999-10-05 | At&T Corp. | Method and apparatus for bandwidth reuse in a communication network |
US6208062B1 (en) * | 1997-08-18 | 2001-03-27 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
FR2772144B1 (fr) * | 1997-12-08 | 2000-02-25 | France Telecom | Dispositif d'echange de signaux optiques a travers une fibre optique |
US6023544A (en) * | 1997-12-24 | 2000-02-08 | Lucent Technologies Inc. | Monitoring with an optical wavelength router |
KR100274804B1 (ko) * | 1998-04-22 | 2001-01-15 | 윤종용 | 양방향 광파장 다중화기/분할기 |
US6639990B1 (en) | 1998-12-03 | 2003-10-28 | Arthur W. Astrin | Low power full duplex wireless link |
US6594049B1 (en) * | 1999-10-29 | 2003-07-15 | Lucent Technologies Inc. | Optical router |
US6512864B1 (en) * | 2000-06-08 | 2003-01-28 | Lucent Technologies Inc. | Optical multiplexer/demultiplexer arrangement for WDM signals having in-band and out-of-band signal components |
US7783195B2 (en) | 2006-07-07 | 2010-08-24 | Scientific-Atlanta, Llc | Format converter with smart multitap with digital forward and reverse |
US7903972B2 (en) | 2006-07-07 | 2011-03-08 | Riggsby Robert R | Format converter with smart multitap |
US7885542B2 (en) | 2006-07-07 | 2011-02-08 | Riggsby Robert R | Format converter with smart multitap and upstream signal regulator |
EP2141833B1 (fr) * | 2008-07-04 | 2013-10-16 | Nokia Siemens Networks Oy | Modulateur I-Q optique |
CN102318364B (zh) * | 2011-07-29 | 2014-06-04 | 华为技术有限公司 | 光交换设备及信号交换系统 |
DE102013206723B4 (de) * | 2013-04-15 | 2022-07-07 | Marco Systemanalyse Und Entwicklung Gmbh | Steuersystem |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3942140A (en) * | 1974-11-08 | 1976-03-02 | The United States Of America As Represented By The Secretary Of The Air Force | Method and means for coupling a multiplicity of surface acoustic wave transducers to a single electromagnetic wave transmission line |
US4773063A (en) * | 1984-11-13 | 1988-09-20 | University Of Delaware | Optical wavelength division multiplexing/demultiplexing system |
US4639695A (en) * | 1985-06-25 | 1987-01-27 | The United States Of America As Represented By The Secretary Of The Army | Wideband saw channellizer using slanted array input transducer |
US4746882A (en) * | 1987-06-24 | 1988-05-24 | Unisys Corporation | Saw multiplexer using tapered transducers |
US4947073A (en) * | 1988-02-04 | 1990-08-07 | Trw Inc. | Saw channelized filters |
JPH0286384A (ja) * | 1988-09-22 | 1990-03-27 | Pioneer Electron Corp | 動画像情報サービスシステム及び該システム用ヘッドエンド装置 |
US4952833A (en) * | 1989-03-22 | 1990-08-28 | Westinghouse Electric Corp. | High density surface acoustic waveguide channelizer |
US5054873A (en) * | 1989-12-04 | 1991-10-08 | Northrop Corporation | High density integrated optical multiplexer/demultiplexer |
US5002350A (en) * | 1990-02-26 | 1991-03-26 | At&T Bell Laboratories | Optical multiplexer/demultiplexer |
US5245404A (en) * | 1990-10-18 | 1993-09-14 | Physical Optics Corportion | Raman sensor |
US5136671A (en) * | 1991-08-21 | 1992-08-04 | At&T Bell Laboratories | Optical switch, multiplexer, and demultiplexer |
-
1993
- 1993-11-03 US US08/147,652 patent/US5483369A/en not_active Expired - Lifetime
-
1994
- 1994-08-05 CA CA002129603A patent/CA2129603C/fr not_active Expired - Fee Related
- 1994-10-26 EP EP94307861A patent/EP0651530A3/fr not_active Ceased
- 1994-11-02 JP JP6292026A patent/JP3068759B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH07240730A (ja) | 1995-09-12 |
US5483369A (en) | 1996-01-09 |
CA2129603A1 (fr) | 1995-05-04 |
CA2129603C (fr) | 1999-02-16 |
EP0651530A2 (fr) | 1995-05-03 |
EP0651530A3 (fr) | 1995-08-09 |
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